arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1807.07779cs.IRcs.CLcs.DB
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基于本体的信息检索的广义向量空间模型

A Generalized Vector Space Model for Ontology-Based Information Retrieval

Vuong M. Ngo, Tru H. Cao

摘要:

命名实体(NE)是由名称(如人员,组织和位置)引用的对象。命名实体和关键字对文档的含义很重要。我们提出了一个广义向量空间模型,结合命名实体和关键字。在该模型中,我们考虑到命名实体的不同本体特征,即别名,类和标识符。此外,我们使用实体类来表示疑问词的潜在信息,在传统的基于关键字的搜索被忽视。我们已经在TREC数据集上实现并测试了所提出的模型,如本文所述。

英文摘要:

Named entities (NE) are objects that are referred to by names such as people, organizations and locations. Named entities and keywords are important to the meaning of a document. We propose a generalized vector space model that combines named entities and keywords. In the model, we take into account different ontological features of named entities, namely, aliases, classes and identifiers. Moreover, we use entity classes to represent the latent information of interrogative words in Wh-queries, which are ignored in traditional keyword-based searching. We have implemented and tested the proposed model on a TREC dataset, as presented and discussed in the paper.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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